The new light-front coupled-cluster (LFCC) method for the nonperturbative solution of Hamiltonian eigenvalue problems is described and then illustrated in an application to quantum electrodynamics. The method eliminates any necessity for a Fock-space truncation and thereby avoids complications associated with such a truncation. An LFCC calculation of the electron's anomalous magnetic moment is formulated for a truncation that, for simplicity, excludes positrons but keeps arbitrarily many photons.
Categories: hep-ph